X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/3fa0c5052be821b2897e4c2fbef0cf45dbd9d705..fe4dcb868e1371946b675415fdf19249a606281f:/src/print.c diff --git a/src/print.c b/src/print.c index cbb3131035..5a0f7fe622 100644 --- a/src/print.c +++ b/src/print.c @@ -1,5 +1,5 @@ /* Lisp object printing and output streams. - Copyright (C) 1985, 86, 88, 93, 94, 95, 97, 98, 1999, 2000, 2001 + Copyright (C) 1985, 86, 88, 93, 94, 95, 97, 98, 1999, 2000, 01, 03, 2004 Free Software Foundation, Inc. This file is part of GNU Emacs. @@ -91,6 +91,9 @@ Lisp_Object Vfloat_output_format, Qfloat_output_format; /* Avoid actual stack overflow in print. */ int print_depth; +/* Nonzero if inside outputting backquote in old style. */ +int old_backquote_output; + /* Detect most circularities to print finite output. */ #define PRINT_CIRCLE 200 Lisp_Object being_printed[PRINT_CIRCLE]; @@ -186,13 +189,13 @@ void print_interval (); and must start with PRINTPREPARE, end with PRINTFINISH, and use PRINTDECLARE to declare common variables. Use PRINTCHAR to output one character, - or call strout to output a block of characters. */ + or call strout to output a block of characters. */ #define PRINTDECLARE \ struct buffer *old = current_buffer; \ int old_point = -1, start_point = -1; \ int old_point_byte = -1, start_point_byte = -1; \ - int specpdl_count = specpdl_ptr - specpdl; \ + int specpdl_count = SPECPDL_INDEX (); \ int free_print_buffer = 0; \ int multibyte = !NILP (current_buffer->enable_multibyte_characters); \ Lisp_Object original @@ -290,7 +293,7 @@ static Lisp_Object print_unwind (saved_text) Lisp_Object saved_text; { - bcopy (XSTRING (saved_text)->data, print_buffer, XSTRING (saved_text)->size); + bcopy (SDATA (saved_text), print_buffer, SCHARS (saved_text)); return Qnil; } @@ -318,7 +321,7 @@ printchar (ch, fun) int len = CHAR_STRING (ch, str); QUIT; - + if (NILP (fun)) { if (print_buffer_pos_byte + len >= print_buffer_size) @@ -337,7 +340,7 @@ printchar (ch, fun) { int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); - + setup_echo_area_for_printing (multibyte_p); insert_char (ch); message_dolog (str, len, 0, multibyte_p); @@ -394,14 +397,14 @@ strout (ptr, size, size_byte, printcharfun, multibyte) int i; int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); - + setup_echo_area_for_printing (multibyte_p); message_dolog (ptr, size_byte, 0, multibyte_p); - + if (size == size_byte) { for (i = 0; i < size; ++i) - insert_char (*ptr++); + insert_char ((unsigned char )*ptr++); } else { @@ -412,7 +415,7 @@ strout (ptr, size, size_byte, printcharfun, multibyte) insert_char (ch); } } - + #ifdef MAX_PRINT_CHARS if (max_print) print_chars += size; @@ -461,7 +464,7 @@ print_string (string, printcharfun) int chars; if (STRING_MULTIBYTE (string)) - chars = XSTRING (string)->size; + chars = SCHARS (string); else if (EQ (printcharfun, Qt) ? ! NILP (buffer_defaults.enable_multibyte_characters) : ! NILP (current_buffer->enable_multibyte_characters)) @@ -472,22 +475,22 @@ print_string (string, printcharfun) Lisp_Object newstr; int bytes; - chars = STRING_BYTES (XSTRING (string)); - bytes = parse_str_to_multibyte (XSTRING (string)->data, chars); + chars = SBYTES (string); + bytes = parse_str_to_multibyte (SDATA (string), chars); if (chars < bytes) { newstr = make_uninit_multibyte_string (chars, bytes); - bcopy (XSTRING (string)->data, XSTRING (newstr)->data, chars); - str_to_multibyte (XSTRING (newstr)->data, bytes, chars); + bcopy (SDATA (string), SDATA (newstr), chars); + str_to_multibyte (SDATA (newstr), bytes, chars); string = newstr; } } else - chars = STRING_BYTES (XSTRING (string)); + chars = SBYTES (string); /* strout is safe for output to a frame (echo area) or to print_buffer. */ - strout (XSTRING (string)->data, - chars, STRING_BYTES (XSTRING (string)), + strout (SDATA (string), + chars, SBYTES (string), printcharfun, STRING_MULTIBYTE (string)); } else @@ -495,24 +498,24 @@ print_string (string, printcharfun) /* Otherwise, string may be relocated by printing one char. So re-fetch the string address for each character. */ int i; - int size = XSTRING (string)->size; - int size_byte = STRING_BYTES (XSTRING (string)); + int size = SCHARS (string); + int size_byte = SBYTES (string); struct gcpro gcpro1; GCPRO1 (string); if (size == size_byte) for (i = 0; i < size; i++) - PRINTCHAR (XSTRING (string)->data[i]); + PRINTCHAR (SREF (string, i)); else - for (i = 0; i < size_byte; i++) + for (i = 0; i < size_byte; ) { /* Here, we must convert each multi-byte form to the corresponding character code before handing it to PRINTCHAR. */ int len; - int ch = STRING_CHAR_AND_LENGTH (XSTRING (string)->data + i, + int ch = STRING_CHAR_AND_LENGTH (SDATA (string) + i, size_byte - i, len); if (!CHAR_VALID_P (ch, 0)) { - ch = XSTRING (string)->data[i]; + ch = SREF (string, i); len = 1; } PRINTCHAR (ch); @@ -523,16 +526,16 @@ print_string (string, printcharfun) } DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0, - "Output character CHARACTER to stream PRINTCHARFUN.\n\ -PRINTCHARFUN defaults to the value of `standard-output' (which see).") - (character, printcharfun) + doc: /* Output character CHARACTER to stream PRINTCHARFUN. +PRINTCHARFUN defaults to the value of `standard-output' (which see). */) + (character, printcharfun) Lisp_Object character, printcharfun; { PRINTDECLARE; if (NILP (printcharfun)) printcharfun = Vstandard_output; - CHECK_NUMBER (character, 0); + CHECK_NUMBER (character); PRINTPREPARE; PRINTCHAR (XINT (character)); PRINTFINISH; @@ -578,9 +581,9 @@ write_string_1 (data, size, printcharfun) void temp_output_buffer_setup (bufname) - char *bufname; + const char *bufname; { - int count = specpdl_ptr - specpdl; + int count = SPECPDL_INDEX (); register struct buffer *old = current_buffer; register Lisp_Object buf; @@ -588,19 +591,22 @@ temp_output_buffer_setup (bufname) Fset_buffer (Fget_buffer_create (build_string (bufname))); + Fkill_all_local_variables (); + delete_all_overlays (current_buffer); current_buffer->directory = old->directory; current_buffer->read_only = Qnil; current_buffer->filename = Qnil; current_buffer->undo_list = Qt; - current_buffer->overlays_before = Qnil; - current_buffer->overlays_after = Qnil; + eassert (current_buffer->overlays_before == NULL); + eassert (current_buffer->overlays_after == NULL); current_buffer->enable_multibyte_characters = buffer_defaults.enable_multibyte_characters; + specbind (Qinhibit_read_only, Qt); + specbind (Qinhibit_modification_hooks, Qt); Ferase_buffer (); XSETBUFFER (buf, current_buffer); - if (!NILP (Vrun_hooks)) - call1 (Vrun_hooks, Qtemp_buffer_setup_hook); + Frun_hooks (1, &Qtemp_buffer_setup_hook); unbind_to (count, Qnil); @@ -609,11 +615,11 @@ temp_output_buffer_setup (bufname) Lisp_Object internal_with_output_to_temp_buffer (bufname, function, args) - char *bufname; + const char *bufname; Lisp_Object (*function) P_ ((Lisp_Object)); Lisp_Object args; { - int count = specpdl_ptr - specpdl; + int count = SPECPDL_INDEX (); Lisp_Object buf, val; struct gcpro gcpro1; @@ -632,43 +638,47 @@ internal_with_output_to_temp_buffer (bufname, function, args) return unbind_to (count, val); } -DEFUN ("with-output-to-temp-buffer", Fwith_output_to_temp_buffer, Swith_output_to_temp_buffer, +DEFUN ("with-output-to-temp-buffer", + Fwith_output_to_temp_buffer, Swith_output_to_temp_buffer, 1, UNEVALLED, 0, - "Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.\n\ -The buffer is cleared out initially, and marked as unmodified when done.\n\ -All output done by BODY is inserted in that buffer by default.\n\ -The buffer is displayed in another window, but not selected.\n\ -The value of the last form in BODY is returned.\n\ -If BODY does not finish normally, the buffer BUFNAME is not displayed.\n\ -\n\ -The hook `temp-buffer-setup-hook' is run before BODY,\n\ -with the buffer BUFNAME temporarily current.\n\ -The hook `temp-buffer-show-hook' is run after the buffer is displayed,\n\ -with the buffer temporarily current, and the window that was used\n\ -to display it temporarily selected.\n\ -\n\ -If variable `temp-buffer-show-function' is non-nil, call it at the end\n\ -to get the buffer displayed instead of just displaying the non-selected\n\ -buffer and calling the hook. It gets one argument, the buffer to display.") - (args) + doc: /* Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer. +The buffer is cleared out initially, and marked as unmodified when done. +All output done by BODY is inserted in that buffer by default. +The buffer is displayed in another window, but not selected. +The value of the last form in BODY is returned. +If BODY does not finish normally, the buffer BUFNAME is not displayed. + +The hook `temp-buffer-setup-hook' is run before BODY, +with the buffer BUFNAME temporarily current. +The hook `temp-buffer-show-hook' is run after the buffer is displayed, +with the buffer temporarily current, and the window that was used +to display it temporarily selected. + +If variable `temp-buffer-show-function' is non-nil, call it at the end +to get the buffer displayed instead of just displaying the non-selected +buffer and calling the hook. It gets one argument, the buffer to display. + +usage: (with-output-to-temp-buffer BUFNAME BODY ...) */) + (args) Lisp_Object args; { struct gcpro gcpro1; Lisp_Object name; - int count = specpdl_ptr - specpdl; + int count = SPECPDL_INDEX (); Lisp_Object buf, val; GCPRO1(args); name = Feval (Fcar (args)); - UNGCPRO; - - CHECK_STRING (name, 0); - temp_output_buffer_setup (XSTRING (name)->data); + CHECK_STRING (name); + temp_output_buffer_setup (SDATA (name)); buf = Vstandard_output; + UNGCPRO; - val = Fprogn (Fcdr (args)); + val = Fprogn (XCDR (args)); + GCPRO1 (val); temp_output_buffer_show (buf); + UNGCPRO; return unbind_to (count, val); } @@ -680,8 +690,8 @@ static void print_preprocess_string (); static void print_object (); DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0, - "Output a newline to stream PRINTCHARFUN.\n\ -If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used.") + doc: /* Output a newline to stream PRINTCHARFUN. +If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used. */) (printcharfun) Lisp_Object printcharfun; { @@ -696,28 +706,29 @@ If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used.") } DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0, - "Output the printed representation of OBJECT, any Lisp object.\n\ -Quoting characters are printed when needed to make output that `read'\n\ -can handle, whenever this is possible.\n\ -\n\ -OBJECT is any of the Lisp data types: a number, a a string, a symbol,\n\ -a list, a buffer, a window, a frame, etc.\n\ -\n\ -A printed representation of an object is text which describes that object.\n\ -\n\ -Optional argument PRINTCHARFUN is the output stream, which can be one\n\ -of these:\n\ -\n\ - - a buffer, in which case output is inserted into that buffer at point;\n\ - - a marker, in which case output is inserted at marker's position;\n\ - - a function, in which case that function is called once for each\n\ - character of OBJECT's printed representation;\n\ - - a symbol, in which case that symbol's function definition is called; or\n\ - - t, in which case the output is displayed in the echo area.\n\ -\n\ -If PRINTCHARFUN is omitted, the value of `standard-output' (which see)\n\ -is used instead.") - (object, printcharfun) + doc: /* Output the printed representation of OBJECT, any Lisp object. +Quoting characters are printed when needed to make output that `read' +can handle, whenever this is possible. For complex objects, the behavior +is controlled by `print-level' and `print-length', which see. + +OBJECT is any of the Lisp data types: a number, a string, a symbol, +a list, a buffer, a window, a frame, etc. + +A printed representation of an object is text which describes that object. + +Optional argument PRINTCHARFUN is the output stream, which can be one +of these: + + - a buffer, in which case output is inserted into that buffer at point; + - a marker, in which case output is inserted at marker's position; + - a function, in which case that function is called once for each + character of OBJECT's printed representation; + - a symbol, in which case that symbol's function definition is called; or + - t, in which case the output is displayed in the echo area. + +If PRINTCHARFUN is omitted, the value of `standard-output' (which see) +is used instead. */) + (object, printcharfun) Lisp_Object object, printcharfun; { PRINTDECLARE; @@ -737,69 +748,85 @@ is used instead.") Lisp_Object Vprin1_to_string_buffer; DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0, - "Return a string containing the printed representation of OBJECT,\n\ -any Lisp object. Quoting characters are used when needed to make output\n\ -that `read' can handle, whenever this is possible, unless the optional\n\ -second argument NOESCAPE is non-nil.\n\ -\n\ -OBJECT is any of the Lisp data types: a number, a a string, a symbol,\n\ -a list, a buffer, a window, a frame, etc.\n\ -\n\ -A printed representation of an object is text which describes that object.") - (object, noescape) + doc: /* Return a string containing the printed representation of OBJECT. +OBJECT can be any Lisp object. This function outputs quoting characters +when necessary to make output that `read' can handle, whenever possible, +unless the optional second argument NOESCAPE is non-nil. + +OBJECT is any of the Lisp data types: a number, a string, a symbol, +a list, a buffer, a window, a frame, etc. + +A printed representation of an object is text which describes that object. */) + (object, noescape) Lisp_Object object, noescape; { - PRINTDECLARE; Lisp_Object printcharfun; - struct gcpro gcpro1, gcpro2; - Lisp_Object tem; + /* struct gcpro gcpro1, gcpro2; */ + Lisp_Object save_deactivate_mark; + int count = specpdl_ptr - specpdl; + struct buffer *previous; - /* Save and restore this--we are altering a buffer - but we don't want to deactivate the mark just for that. - No need for specbind, since errors deactivate the mark. */ - tem = Vdeactivate_mark; - GCPRO2 (object, tem); + specbind (Qinhibit_modification_hooks, Qt); - printcharfun = Vprin1_to_string_buffer; - PRINTPREPARE; - print (object, printcharfun, NILP (noescape)); - /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */ - PRINTFINISH; + { + PRINTDECLARE; + + /* Save and restore this--we are altering a buffer + but we don't want to deactivate the mark just for that. + No need for specbind, since errors deactivate the mark. */ + save_deactivate_mark = Vdeactivate_mark; + /* GCPRO2 (object, save_deactivate_mark); */ + abort_on_gc++; + + printcharfun = Vprin1_to_string_buffer; + PRINTPREPARE; + print (object, printcharfun, NILP (noescape)); + /* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */ + PRINTFINISH; + } + + previous = current_buffer; set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); object = Fbuffer_string (); + if (SBYTES (object) == SCHARS (object)) + STRING_SET_UNIBYTE (object); + /* Note that this won't make prepare_to_modify_buffer call + ask-user-about-supersession-threat because this buffer + does not visit a file. */ Ferase_buffer (); - set_buffer_internal (old); + set_buffer_internal (previous); - Vdeactivate_mark = tem; - UNGCPRO; + Vdeactivate_mark = save_deactivate_mark; + /* UNGCPRO; */ - return object; + abort_on_gc--; + return unbind_to (count, object); } DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0, - "Output the printed representation of OBJECT, any Lisp object.\n\ -No quoting characters are used; no delimiters are printed around\n\ -the contents of strings.\n\ -\n\ -OBJECT is any of the Lisp data types: a number, a a string, a symbol,\n\ -a list, a buffer, a window, a frame, etc.\n\ -\n\ -A printed representation of an object is text which describes that object.\n\ -\n\ -Optional argument PRINTCHARFUN is the output stream, which can be one\n\ -of these:\n\ -\n\ - - a buffer, in which case output is inserted into that buffer at point;\n\ - - a marker, in which case output is inserted at marker's position;\n\ - - a function, in which case that function is called once for each\n\ - character of OBJECT's printed representation;\n\ - - a symbol, in which case that symbol's function definition is called; or\n\ - - t, in which case the output is displayed in the echo area.\n\ -\n\ -If PRINTCHARFUN is omitted, the value of `standard-output' (which see)\n\ -is used instead.") - (object, printcharfun) + doc: /* Output the printed representation of OBJECT, any Lisp object. +No quoting characters are used; no delimiters are printed around +the contents of strings. + +OBJECT is any of the Lisp data types: a number, a string, a symbol, +a list, a buffer, a window, a frame, etc. + +A printed representation of an object is text which describes that object. + +Optional argument PRINTCHARFUN is the output stream, which can be one +of these: + + - a buffer, in which case output is inserted into that buffer at point; + - a marker, in which case output is inserted at marker's position; + - a function, in which case that function is called once for each + character of OBJECT's printed representation; + - a symbol, in which case that symbol's function definition is called; or + - t, in which case the output is displayed in the echo area. + +If PRINTCHARFUN is omitted, the value of `standard-output' (which see) +is used instead. */) + (object, printcharfun) Lisp_Object object, printcharfun; { PRINTDECLARE; @@ -813,28 +840,29 @@ is used instead.") } DEFUN ("print", Fprint, Sprint, 1, 2, 0, - "Output the printed representation of OBJECT, with newlines around it.\n\ -Quoting characters are printed when needed to make output that `read'\n\ -can handle, whenever this is possible.\n\ -\n\ -OBJECT is any of the Lisp data types: a number, a a string, a symbol,\n\ -a list, a buffer, a window, a frame, etc.\n\ -\n\ -A printed representation of an object is text which describes that object.\n\ -\n\ -Optional argument PRINTCHARFUN is the output stream, which can be one\n\ -of these:\n\ -\n\ - - a buffer, in which case output is inserted into that buffer at point;\n\ - - a marker, in which case output is inserted at marker's position;\n\ - - a function, in which case that function is called once for each\n\ - character of OBJECT's printed representation;\n\ - - a symbol, in which case that symbol's function definition is called; or\n\ - - t, in which case the output is displayed in the echo area.\n\ -\n\ -If PRINTCHARFUN is omitted, the value of `standard-output' (which see)\n\ -is used instead.") - (object, printcharfun) + doc: /* Output the printed representation of OBJECT, with newlines around it. +Quoting characters are printed when needed to make output that `read' +can handle, whenever this is possible. For complex objects, the behavior +is controlled by `print-level' and `print-length', which see. + +OBJECT is any of the Lisp data types: a number, a string, a symbol, +a list, a buffer, a window, a frame, etc. + +A printed representation of an object is text which describes that object. + +Optional argument PRINTCHARFUN is the output stream, which can be one +of these: + + - a buffer, in which case output is inserted into that buffer at point; + - a marker, in which case output is inserted at marker's position; + - a function, in which case that function is called once for each + character of OBJECT's printed representation; + - a symbol, in which case that symbol's function definition is called; or + - t, in which case the output is displayed in the echo area. + +If PRINTCHARFUN is omitted, the value of `standard-output' (which see) +is used instead. */) + (object, printcharfun) Lisp_Object object, printcharfun; { PRINTDECLARE; @@ -865,13 +893,13 @@ is used instead.") Lisp_Object Qexternal_debugging_output; DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0, - "Write CHARACTER to stderr.\n\ -You can call print while debugging emacs, and pass it this function\n\ -to make it write to the debugging output.\n") - (character) + doc: /* Write CHARACTER to stderr. +You can call print while debugging emacs, and pass it this function +to make it write to the debugging output. */) + (character) Lisp_Object character; { - CHECK_NUMBER (character, 0); + CHECK_NUMBER (character); putc (XINT (character), stderr); #ifdef WINDOWSNT @@ -885,6 +913,49 @@ to make it write to the debugging output.\n") return character; } + +#if defined(GNU_LINUX) + +/* This functionality is not vitally important in general, so we rely on + non-portable ability to use stderr as lvalue. */ + +#define WITH_REDIRECT_DEBUGGING_OUTPUT 1 + +FILE *initial_stderr_stream = NULL; + +DEFUN ("redirect-debugging-output", Fredirect_debugging_output, Sredirect_debugging_output, + 1, 2, + "FDebug output file: \nP", + doc: /* Redirect debugging output (stderr stream) to file FILE. +If FILE is nil, reset target to the initial stderr stream. +Optional arg APPEND non-nil (interactively, with prefix arg) means +append to existing target file. */) + (file, append) + Lisp_Object file, append; +{ + if (initial_stderr_stream != NULL) + fclose(stderr); + stderr = initial_stderr_stream; + initial_stderr_stream = NULL; + + if (STRINGP (file)) + { + file = Fexpand_file_name (file, Qnil); + initial_stderr_stream = stderr; + stderr = fopen(SDATA (file), NILP (append) ? "w" : "a"); + if (stderr == NULL) + { + stderr = initial_stderr_stream; + initial_stderr_stream = NULL; + report_file_error ("Cannot open debugging output stream", + Fcons (file, Qnil)); + } + } + return Qnil; +} +#endif /* GNU_LINUX */ + + /* This is the interface for debugging printing. */ void @@ -897,8 +968,10 @@ debug_print (arg) DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, 1, 1, 0, - "Convert an error value (ERROR-SYMBOL . DATA) to an error message.") - (obj) + doc: /* Convert an error value (ERROR-SYMBOL . DATA) to an error message. +See Info anchor `(elisp)Definition of signal' for some details on how this +error message is constructed. */) + (obj) Lisp_Object obj; { struct buffer *old = current_buffer; @@ -914,7 +987,7 @@ DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, && NILP (XCDR (XCDR (obj)))) return XCAR (XCDR (obj)); - print_error_message (obj, Vprin1_to_string_buffer); + print_error_message (obj, Vprin1_to_string_buffer, 0, Qnil); set_buffer_internal (XBUFFER (Vprin1_to_string_buffer)); value = Fbuffer_string (); @@ -931,13 +1004,27 @@ DEFUN ("error-message-string", Ferror_message_string, Serror_message_string, STREAM (suitable for the print functions). */ void -print_error_message (data, stream) +print_error_message (data, stream, context, caller) Lisp_Object data, stream; + char *context; + Lisp_Object caller; { Lisp_Object errname, errmsg, file_error, tail; struct gcpro gcpro1; int i; + if (context != 0) + write_string_1 (context, -1, stream); + + /* If we know from where the error was signaled, show it in + *Messages*. */ + if (!NILP (caller) && SYMBOLP (caller)) + { + const char *name = SDATA (SYMBOL_NAME (caller)); + message_dolog (name, strlen (name), 0, 0); + message_dolog (": ", 2, 0, 0); + } + errname = Fcar (data); if (EQ (errname, Qerror)) @@ -961,16 +1048,6 @@ print_error_message (data, stream) tail = Fcdr_safe (data); GCPRO1 (tail); - /* If we know from where the error was signaled, show it in - *Messages*. */ - if (!NILP (Vsignaling_function) && SYMBOLP (Vsignaling_function)) - { - char *name = XSYMBOL (Vsignaling_function)->name->data; - message_dolog (name, strlen (name), 0, 0); - message_dolog (": ", 2, 0, 0); - Vsignaling_function = Qnil; - } - /* For file-error, make error message by concatenating all the data items. They are all strings. */ if (!NILP (file_error) && CONSP (tail)) @@ -992,7 +1069,7 @@ print_error_message (data, stream) else Fprin1 (obj, stream); } - + UNGCPRO; } @@ -1003,9 +1080,9 @@ print_error_message (data, stream) * largest float, printed in the biggest notation. This is undoubtedly * 20d float_output_format, with the negative of the C-constant "HUGE" * from . - * + * * On the vax the worst case is -1e38 in 20d format which takes 61 bytes. - * + * * I assume that IEEE-754 format numbers can take 329 bytes for the worst * case of -1e307 in 20d float_output_format. What is one to do (short of * re-writing _doprnt to be more sane)? @@ -1019,7 +1096,7 @@ float_to_string (buf, data) { unsigned char *cp; int width; - + /* Check for plus infinity in a way that won't lose if there is no plus infinity. */ if (data == data / 2 && data > 1.0) @@ -1048,7 +1125,7 @@ float_to_string (buf, data) *buf++ = '-'; break; } - + strcpy (buf, "0.0e+NaN"); return; } @@ -1078,7 +1155,7 @@ float_to_string (buf, data) /* Check that the spec we have is fully valid. This means not only valid for printf, but meant for floats, and reasonable. */ - cp = XSTRING (Vfloat_output_format)->data; + cp = SDATA (Vfloat_output_format); if (cp[0] != '%') goto lose; @@ -1108,7 +1185,7 @@ float_to_string (buf, data) if (cp[1] != 0) goto lose; - sprintf (buf, XSTRING (Vfloat_output_format)->data, data); + sprintf (buf, SDATA (Vfloat_output_format), data); } /* Make sure there is a decimal point with digit after, or an @@ -1143,7 +1220,7 @@ print (obj, printcharfun, escapeflag) register Lisp_Object printcharfun; int escapeflag; { - print_depth = 0; + old_backquote_output = 0; /* Reset print_number_index and Vprint_number_table only when the variable Vprint_continuous_numbering is nil. Otherwise, @@ -1159,24 +1236,35 @@ print (obj, printcharfun, escapeflag) if (!NILP (Vprint_gensym) || !NILP (Vprint_circle)) { int i, start, index; - /* Construct Vprint_number_table. */ start = index = print_number_index; + /* Construct Vprint_number_table. + This increments print_number_index for the objects added. */ + print_depth = 0; print_preprocess (obj); + /* Remove unnecessary objects, which appear only once in OBJ; - that is, whose status is Qnil. */ + that is, whose status is Qnil. Compactify the necessary objects. */ for (i = start; i < print_number_index; i++) if (!NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i))) { PRINT_NUMBER_OBJECT (Vprint_number_table, index) = PRINT_NUMBER_OBJECT (Vprint_number_table, i); - /* Reset the status field for the next print step. Now this - field means whether the object has already been printed. */ - PRINT_NUMBER_STATUS (Vprint_number_table, index) = Qnil; index++; } + + /* Clear out objects outside the active part of the table. */ + for (i = index; i < print_number_index; i++) + PRINT_NUMBER_OBJECT (Vprint_number_table, i) = Qnil; + + /* Reset the status field for the next print step. Now this + field means whether the object has already been printed. */ + for (i = start; i < print_number_index; i++) + PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qnil; + print_number_index = index; } + print_depth = 0; print_object (obj, printcharfun, escapeflag); } @@ -1191,13 +1279,35 @@ static void print_preprocess (obj) Lisp_Object obj; { - int i, size; + int i; + EMACS_INT size; + int loop_count = 0; + Lisp_Object halftail; + + /* Give up if we go so deep that print_object will get an error. */ + /* See similar code in print_object. */ + if (print_depth >= PRINT_CIRCLE) + return; + + /* Avoid infinite recursion for circular nested structure + in the case where Vprint_circle is nil. */ + if (NILP (Vprint_circle)) + { + for (i = 0; i < print_depth; i++) + if (EQ (obj, being_printed[i])) + return; + being_printed[print_depth] = obj; + } + + print_depth++; + halftail = obj; loop: if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) || COMPILEDP (obj) || CHAR_TABLE_P (obj) || (! NILP (Vprint_gensym) - && SYMBOLP (obj) && NILP (XSYMBOL (obj)->obarray))) + && SYMBOLP (obj) + && !SYMBOL_INTERNED_P (obj))) { /* In case print-circle is nil and print-gensym is t, add OBJ to Vprint_number_table only when OBJ is a symbol. */ @@ -1235,8 +1345,9 @@ print_preprocess (obj) /* If Vprint_continuous_numbering is non-nil and OBJ is a gensym, always print the gensym with a number. This is a special for the lisp function byte-compile-output-docform. */ - if (! NILP (Vprint_continuous_numbering) && SYMBOLP (obj) - && NILP (XSYMBOL (obj)->obarray)) + if (!NILP (Vprint_continuous_numbering) + && SYMBOLP (obj) + && !SYMBOL_INTERNED_P (obj)) PRINT_NUMBER_STATUS (Vprint_number_table, print_number_index) = Qt; print_number_index++; } @@ -1245,17 +1356,26 @@ print_preprocess (obj) { case Lisp_String: /* A string may have text properties, which can be circular. */ - traverse_intervals (XSTRING (obj)->intervals, 0, 0, - print_preprocess_string, Qnil); + traverse_intervals_noorder (STRING_INTERVALS (obj), + print_preprocess_string, Qnil); break; case Lisp_Cons: + /* Use HALFTAIL and LOOP_COUNT to detect circular lists, + just as in print_object. */ + if (loop_count && EQ (obj, halftail)) + break; print_preprocess (XCAR (obj)); obj = XCDR (obj); + loop_count++; + if (!(loop_count & 1)) + halftail = XCDR (halftail); goto loop; case Lisp_Vectorlike: - size = XVECTOR (obj)->size & PSEUDOVECTOR_SIZE_MASK; + size = XVECTOR (obj)->size; + if (size & PSEUDOVECTOR_FLAG) + size &= PSEUDOVECTOR_SIZE_MASK; for (i = 0; i < size; i++) print_preprocess (XVECTOR (obj)->contents[i]); break; @@ -1264,6 +1384,7 @@ print_preprocess (obj) break; } } + print_depth--; } static void @@ -1280,7 +1401,7 @@ print_object (obj, printcharfun, escapeflag) register Lisp_Object printcharfun; int escapeflag; { - char buf[30]; + char buf[40]; QUIT; @@ -1288,7 +1409,8 @@ print_object (obj, printcharfun, escapeflag) if (STRINGP (obj) || CONSP (obj) || VECTORP (obj) || COMPILEDP (obj) || CHAR_TABLE_P (obj) || (! NILP (Vprint_gensym) - && SYMBOLP (obj) && NILP (XSYMBOL (obj)->obarray))) + && SYMBOLP (obj) + && !SYMBOL_INTERNED_P (obj))) { if (NILP (Vprint_circle) && NILP (Vprint_gensym)) { @@ -1333,6 +1455,7 @@ print_object (obj, printcharfun, escapeflag) print_depth++; + /* See similar code in print_preprocess. */ if (print_depth > PRINT_CIRCLE) error ("Apparently circular structure being printed"); #ifdef MAX_PRINT_CHARS @@ -1376,18 +1499,19 @@ print_object (obj, printcharfun, escapeflag) /* 1 means we must ensure that the next character we output cannot be taken as part of a hex character escape. */ int need_nonhex = 0; + int multibyte = STRING_MULTIBYTE (obj); GCPRO1 (obj); - if (!NULL_INTERVAL_P (XSTRING (obj)->intervals)) + if (!NULL_INTERVAL_P (STRING_INTERVALS (obj))) { PRINTCHAR ('#'); PRINTCHAR ('('); } PRINTCHAR ('\"'); - str = XSTRING (obj)->data; - size_byte = STRING_BYTES (XSTRING (obj)); + str = SDATA (obj); + size_byte = SBYTES (obj); for (i = 0, i_byte = 0; i_byte < size_byte;) { @@ -1396,7 +1520,7 @@ print_object (obj, printcharfun, escapeflag) int len; int c; - if (STRING_MULTIBYTE (obj)) + if (multibyte) { c = STRING_CHAR_AND_LENGTH (str + i_byte, size_byte - i_byte, len); @@ -1420,16 +1544,22 @@ print_object (obj, printcharfun, escapeflag) PRINTCHAR ('\\'); PRINTCHAR ('f'); } - else if (! SINGLE_BYTE_CHAR_P (c) && print_escape_multibyte) + else if (multibyte + && ! ASCII_BYTE_P (c) + && (SINGLE_BYTE_CHAR_P (c) || print_escape_multibyte)) { /* When multibyte is disabled, - print multibyte string chars using hex escapes. */ + print multibyte string chars using hex escapes. + For a char code that could be in a unibyte string, + when found in a multibyte string, always use a hex escape + so it reads back as multibyte. */ unsigned char outbuf[50]; sprintf (outbuf, "\\x%x", c); strout (outbuf, -1, -1, printcharfun, 0); need_nonhex = 1; } - else if (SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c) + else if (! multibyte + && SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c) && print_escape_nonascii) { /* When printing in a multibyte buffer @@ -1461,10 +1591,10 @@ print_object (obj, printcharfun, escapeflag) } PRINTCHAR ('\"'); - if (!NULL_INTERVAL_P (XSTRING (obj)->intervals)) + if (!NULL_INTERVAL_P (STRING_INTERVALS (obj))) { - traverse_intervals (XSTRING (obj)->intervals, - 0, 0, print_interval, printcharfun); + traverse_intervals (STRING_INTERVALS (obj), + 0, print_interval, printcharfun); PRINTCHAR (')'); } @@ -1475,13 +1605,13 @@ print_object (obj, printcharfun, escapeflag) case Lisp_Symbol: { register int confusing; - register unsigned char *p = XSYMBOL (obj)->name->data; - register unsigned char *end = p + STRING_BYTES (XSYMBOL (obj)->name); + register unsigned char *p = SDATA (SYMBOL_NAME (obj)); + register unsigned char *end = p + SBYTES (SYMBOL_NAME (obj)); register int c; int i, i_byte, size_byte; Lisp_Object name; - XSETSTRING (name, XSYMBOL (obj)->name); + name = SYMBOL_NAME (obj); if (p != end && (*p == '-' || *p == '+')) p++; if (p == end) @@ -1505,13 +1635,13 @@ print_object (obj, printcharfun, escapeflag) else confusing = 0; - if (! NILP (Vprint_gensym) && NILP (XSYMBOL (obj)->obarray)) + if (! NILP (Vprint_gensym) && !SYMBOL_INTERNED_P (obj)) { PRINTCHAR ('#'); PRINTCHAR (':'); } - size_byte = STRING_BYTES (XSTRING (name)); + size_byte = SBYTES (name); for (i = 0, i_byte = 0; i_byte < size_byte;) { @@ -1553,6 +1683,7 @@ print_object (obj, printcharfun, escapeflag) print_object (XCAR (XCDR (obj)), printcharfun, escapeflag); } else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj))) + && ! old_backquote_output && ((EQ (XCAR (obj), Qbackquote) || EQ (XCAR (obj), Qcomma) || EQ (XCAR (obj), Qcomma_at) @@ -1564,6 +1695,29 @@ print_object (obj, printcharfun, escapeflag) else { PRINTCHAR ('('); + + /* If the first element is a backquote form, + print it old-style so it won't be misunderstood. */ + if (print_quoted && CONSP (XCAR (obj)) + && CONSP (XCDR (XCAR (obj))) + && NILP (XCDR (XCDR (XCAR (obj)))) + && EQ (XCAR (XCAR (obj)), Qbackquote)) + { + Lisp_Object tem; + tem = XCAR (obj); + PRINTCHAR ('('); + + print_object (Qbackquote, printcharfun, 0); + PRINTCHAR (' '); + + ++old_backquote_output; + print_object (XCAR (XCDR (tem)), printcharfun, 0); + --old_backquote_output; + PRINTCHAR (')'); + + obj = XCDR (obj); + } + { int print_length, i; Lisp_Object halftail = obj; @@ -1613,18 +1767,18 @@ print_object (obj, printcharfun, escapeflag) } } } - + if (i++) PRINTCHAR (' '); - + if (print_length && i > print_length) { strout ("...", 3, 3, printcharfun, 0); goto end_of_list; } - + print_object (XCAR (obj), printcharfun, escapeflag); - + obj = XCDR (obj); if (!(i & 1)) halftail = XCDR (halftail); @@ -1637,7 +1791,7 @@ print_object (obj, printcharfun, escapeflag) strout (" . ", 3, 3, printcharfun, 0); print_object (obj, printcharfun, escapeflag); } - + end_of_list: PRINTCHAR (')'); } @@ -1661,13 +1815,14 @@ print_object (obj, printcharfun, escapeflag) register unsigned char c; struct gcpro gcpro1; int size_in_chars - = (XBOOL_VECTOR (obj)->size + BITS_PER_CHAR - 1) / BITS_PER_CHAR; + = ((XBOOL_VECTOR (obj)->size + BOOL_VECTOR_BITS_PER_CHAR - 1) + / BOOL_VECTOR_BITS_PER_CHAR); GCPRO1 (obj); PRINTCHAR ('#'); PRINTCHAR ('&'); - sprintf (buf, "%d", XBOOL_VECTOR (obj)->size); + sprintf (buf, "%ld", (long) XBOOL_VECTOR (obj)->size); strout (buf, -1, -1, printcharfun, 0); PRINTCHAR ('\"'); @@ -1692,6 +1847,14 @@ print_object (obj, printcharfun, escapeflag) PRINTCHAR ('\\'); PRINTCHAR ('f'); } + else if (c > '\177') + { + /* Use octal escapes to avoid encoding issues. */ + PRINTCHAR ('\\'); + PRINTCHAR ('0' + ((c >> 6) & 3)); + PRINTCHAR ('0' + ((c >> 3) & 7)); + PRINTCHAR ('0' + (c & 7)); + } else { if (c == '\"' || c == '\\') @@ -1712,7 +1875,7 @@ print_object (obj, printcharfun, escapeflag) else if (WINDOWP (obj)) { strout ("#sequence_number)); + sprintf (buf, "%ld", (long) XFASTINT (XWINDOW (obj)->sequence_number)); strout (buf, -1, -1, printcharfun, 0); if (!NILP (XWINDOW (obj)->buffer)) { @@ -1729,12 +1892,12 @@ print_object (obj, printcharfun, escapeflag) { PRINTCHAR (' '); PRINTCHAR ('\''); - strout (XSYMBOL (h->test)->name->data, -1, -1, printcharfun, 0); + strout (SDATA (SYMBOL_NAME (h->test)), -1, -1, printcharfun, 0); PRINTCHAR (' '); - strout (XSYMBOL (h->weak)->name->data, -1, -1, printcharfun, 0); + strout (SDATA (SYMBOL_NAME (h->weak)), -1, -1, printcharfun, 0); PRINTCHAR (' '); - sprintf (buf, "%d/%d", XFASTINT (h->count), - XVECTOR (h->next)->size); + sprintf (buf, "%ld/%ld", (long) XFASTINT (h->count), + (long) XVECTOR (h->next)->size); strout (buf, -1, -1, printcharfun, 0); } sprintf (buf, " 0x%lx", (unsigned long) h); @@ -1764,13 +1927,13 @@ print_object (obj, printcharfun, escapeflag) ? "#name, printcharfun); - sprintf (buf, " 0x%lx\\ ", (unsigned long) (XFRAME (obj))); + sprintf (buf, " 0x%lx", (unsigned long) (XFRAME (obj))); strout (buf, -1, -1, printcharfun, 0); PRINTCHAR ('>'); } else { - int size = XVECTOR (obj)->size; + EMACS_INT size = XVECTOR (obj)->size; if (COMPILEDP (obj)) { PRINTCHAR ('#'); @@ -1821,7 +1984,7 @@ print_object (obj, printcharfun, escapeflag) strout ("#insertion_type != 0) - strout ("(before-insertion) ", -1, -1, printcharfun, 0); + strout ("(moves after insertion) ", -1, -1, printcharfun, 0); if (!(XMARKER (obj)->buffer)) strout ("in no buffer", -1, -1, printcharfun, 0); else @@ -1857,7 +2020,7 @@ print_object (obj, printcharfun, escapeflag) break; case Lisp_Misc_Intfwd: - sprintf (buf, "#", *XINTFWD (obj)->intvar); + sprintf (buf, "#", (long) *XINTFWD (obj)->intvar); strout (buf, -1, -1, printcharfun, 0); break; @@ -1974,102 +2137,109 @@ syms_of_print () staticpro (&Qtemp_buffer_setup_hook); DEFVAR_LISP ("standard-output", &Vstandard_output, - "Output stream `print' uses by default for outputting a character.\n\ -This may be any function of one argument.\n\ -It may also be a buffer (output is inserted before point)\n\ -or a marker (output is inserted and the marker is advanced)\n\ -or the symbol t (output appears in the echo area)."); + doc: /* Output stream `print' uses by default for outputting a character. +This may be any function of one argument. +It may also be a buffer (output is inserted before point) +or a marker (output is inserted and the marker is advanced) +or the symbol t (output appears in the echo area). */); Vstandard_output = Qt; Qstandard_output = intern ("standard-output"); staticpro (&Qstandard_output); DEFVAR_LISP ("float-output-format", &Vfloat_output_format, - "The format descriptor string used to print floats.\n\ -This is a %-spec like those accepted by `printf' in C,\n\ -but with some restrictions. It must start with the two characters `%.'.\n\ -After that comes an integer precision specification,\n\ -and then a letter which controls the format.\n\ -The letters allowed are `e', `f' and `g'.\n\ -Use `e' for exponential notation \"DIG.DIGITSeEXPT\"\n\ -Use `f' for decimal point notation \"DIGITS.DIGITS\".\n\ -Use `g' to choose the shorter of those two formats for the number at hand.\n\ -The precision in any of these cases is the number of digits following\n\ -the decimal point. With `f', a precision of 0 means to omit the\n\ -decimal point. 0 is not allowed with `e' or `g'.\n\n\ -A value of nil means to use the shortest notation\n\ -that represents the number without losing information."); + doc: /* The format descriptor string used to print floats. +This is a %-spec like those accepted by `printf' in C, +but with some restrictions. It must start with the two characters `%.'. +After that comes an integer precision specification, +and then a letter which controls the format. +The letters allowed are `e', `f' and `g'. +Use `e' for exponential notation \"DIG.DIGITSeEXPT\" +Use `f' for decimal point notation \"DIGITS.DIGITS\". +Use `g' to choose the shorter of those two formats for the number at hand. +The precision in any of these cases is the number of digits following +the decimal point. With `f', a precision of 0 means to omit the +decimal point. 0 is not allowed with `e' or `g'. + +A value of nil means to use the shortest notation +that represents the number without losing information. */); Vfloat_output_format = Qnil; Qfloat_output_format = intern ("float-output-format"); staticpro (&Qfloat_output_format); DEFVAR_LISP ("print-length", &Vprint_length, - "Maximum length of list to print before abbreviating.\n\ -A value of nil means no limit."); + doc: /* Maximum length of list to print before abbreviating. +A value of nil means no limit. See also `eval-expression-print-length'. */); Vprint_length = Qnil; DEFVAR_LISP ("print-level", &Vprint_level, - "Maximum depth of list nesting to print before abbreviating.\n\ -A value of nil means no limit."); + doc: /* Maximum depth of list nesting to print before abbreviating. +A value of nil means no limit. See also `eval-expression-print-level'. */); Vprint_level = Qnil; DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines, - "Non-nil means print newlines in strings as `\\n'.\n\ -Also print formfeeds as `\\f'."); + doc: /* Non-nil means print newlines in strings as `\\n'. +Also print formfeeds as `\\f'. */); print_escape_newlines = 0; DEFVAR_BOOL ("print-escape-nonascii", &print_escape_nonascii, - "Non-nil means print unibyte non-ASCII chars in strings as \\OOO.\n\ -\(OOO is the octal representation of the character code.)\n\ -Only single-byte characters are affected, and only in `prin1'."); + doc: /* Non-nil means print unibyte non-ASCII chars in strings as \\OOO. +\(OOO is the octal representation of the character code.) +Only single-byte characters are affected, and only in `prin1'. +When the output goes in a multibyte buffer, this feature is +enabled regardless of the value of the variable. */); print_escape_nonascii = 0; DEFVAR_BOOL ("print-escape-multibyte", &print_escape_multibyte, - "Non-nil means print multibyte characters in strings as \\xXXXX.\n\ -\(XXXX is the hex representation of the character code.)\n\ -This affects only `prin1'."); + doc: /* Non-nil means print multibyte characters in strings as \\xXXXX. +\(XXXX is the hex representation of the character code.) +This affects only `prin1'. */); print_escape_multibyte = 0; DEFVAR_BOOL ("print-quoted", &print_quoted, - "Non-nil means print quoted forms with reader syntax.\n\ -I.e., (quote foo) prints as 'foo, (function foo) as #'foo, and backquoted\n\ -forms print as in the new syntax."); + doc: /* Non-nil means print quoted forms with reader syntax. +I.e., (quote foo) prints as 'foo, (function foo) as #'foo, and backquoted +forms print as in the new syntax. */); print_quoted = 0; DEFVAR_LISP ("print-gensym", &Vprint_gensym, - "Non-nil means print uninterned symbols so they will read as uninterned.\n\ -I.e., the value of (make-symbol \"foobar\") prints as #:foobar.\n\ -When the uninterned symbol appears within a recursive data structure,\n\ -and the symbol appears more than once, in addition use the #N# and #N=\n\ -constructs as needed, so that multiple references to the same symbol are\n\ -shared once again when the text is read back."); + doc: /* Non-nil means print uninterned symbols so they will read as uninterned. +I.e., the value of (make-symbol \"foobar\") prints as #:foobar. +When the uninterned symbol appears within a recursive data structure, +and the symbol appears more than once, in addition use the #N# and #N= +constructs as needed, so that multiple references to the same symbol are +shared once again when the text is read back. */); Vprint_gensym = Qnil; DEFVAR_LISP ("print-circle", &Vprint_circle, - "*Non-nil means print recursive structures using #N= and #N# syntax.\n\ -If nil, printing proceeds recursively and may lead to\n\ -`max-lisp-eval-depth' being exceeded or an error may occur:\n\ -\"Apparently circular structure being printed.\" Also see\n\ -`print-length' and `print-level'.\n\ -If non-nil, shared substructures anywhere in the structure are printed\n\ -with `#N=' before the first occurrence (in the order of the print\n\ -representation) and `#N#' in place of each subsequent occurrence,\n\ -where N is a positive decimal integer."); + doc: /* *Non-nil means print recursive structures using #N= and #N# syntax. +If nil, printing proceeds recursively and may lead to +`max-lisp-eval-depth' being exceeded or an error may occur: +\"Apparently circular structure being printed.\" Also see +`print-length' and `print-level'. +If non-nil, shared substructures anywhere in the structure are printed +with `#N=' before the first occurrence (in the order of the print +representation) and `#N#' in place of each subsequent occurrence, +where N is a positive decimal integer. */); Vprint_circle = Qnil; DEFVAR_LISP ("print-continuous-numbering", &Vprint_continuous_numbering, - "*Non-nil means number continuously across print calls.\n\ -This affects the numbers printed for #N= labels and #M# references.\n\ -See also `print-circle', `print-gensym', and `print-number-table'.\n\ -This variable should not be set with `setq'; bind it with a `let' instead."); + doc: /* *Non-nil means number continuously across print calls. +This affects the numbers printed for #N= labels and #M# references. +See also `print-circle', `print-gensym', and `print-number-table'. +This variable should not be set with `setq'; bind it with a `let' instead. */); Vprint_continuous_numbering = Qnil; DEFVAR_LISP ("print-number-table", &Vprint_number_table, - "A vector used internally to produce `#N=' labels and `#N#' references.\n\ -The Lisp printer uses this vector to detect Lisp objects referenced more\n\ -than once. When `print-continuous-numbering' is bound to t, you should\n\ -probably also bind `print-number-table' to nil. This ensures that the\n\ -value of `print-number-table' can be garbage-collected once the printing\n\ -is done."); + doc: /* A vector used internally to produce `#N=' labels and `#N#' references. +The Lisp printer uses this vector to detect Lisp objects referenced more +than once. + +When you bind `print-continuous-numbering' to t, you should probably +also bind `print-number-table' to nil. This ensures that the value of +`print-number-table' can be garbage-collected once the printing is +done. If all elements of `print-number-table' are nil, it means that +the printing done so far has not found any shared structure or objects +that need to be recorded in the table. */); Vprint_number_table = Qnil; /* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */ @@ -2083,6 +2253,9 @@ is done."); defsubr (&Sterpri); defsubr (&Swrite_char); defsubr (&Sexternal_debugging_output); +#ifdef WITH_REDIRECT_DEBUGGING_OUTPUT + defsubr (&Sredirect_debugging_output); +#endif Qexternal_debugging_output = intern ("external-debugging-output"); staticpro (&Qexternal_debugging_output); @@ -2098,3 +2271,6 @@ is done."); defsubr (&Swith_output_to_temp_buffer); } + +/* arch-tag: bc797170-94ae-41de-86e3-75e20f8f7a39 + (do not change this comment) */